14 lines
509 B
Rust
14 lines
509 B
Rust
#![feature(intrinsics)]
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// Directly call intrinsic to avoid debug assertions in libstd
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extern "rust-intrinsic" {
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fn copy_nonoverlapping<T>(src: *const T, dst: *mut T, count: usize);
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}
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fn main() {
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let mut data = [0u16; 8];
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let ptr = (&mut data[0] as *mut u16 as *mut u8).wrapping_add(1) as *mut u16;
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// Even copying 0 elements to something unaligned should error
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unsafe { copy_nonoverlapping(&data[5], ptr, 0); } //~ ERROR accessing memory with alignment 1, but alignment 2 is required
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}
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